diff --git a/doc/setup-commands.rst b/doc/setup-commands.rst
index 12c4f32f89b..fae32af01ae 100644
--- a/doc/setup-commands.rst
+++ b/doc/setup-commands.rst
@@ -1050,7 +1050,8 @@ Miscellaneous options
         experimental. In the future we might add or remove fields, depending
         on the needs of other tooling.
 
-    :: example
+    .. code-block:: json
+
         {
             "cabal-lib-version": "<cabal lib version>",
             "compiler": {